Audio troubleshooting (transmission / reception)

Incorrect settings.

Reset the radio to factory defaults, using the Maintenance menu: Menu > Set-up > Maintenance > System reset.

Dirt or debris blocking the microphone on the fist mic or Raymic handset.

Check the microphone on the fist mic or Raymic to ensure that the microphone port is clear and not blocked. Clean if necessary.

Incorrect channel type in use.

Ensure you are using only Simplex channels for testing, if communicating with another vessel. For example, channels 6, 8, 9, 10, 13, 67, 72, or 73.

Insufficient transmission power.

When communicating with vessels at a distance, ensure the radio is set to transmit at 25 W power. Press the HI / LO button on the fist mic or the Raymic handset and ensure that the 25 W symbol is displayed.

Incorrect settings.

Reset the radio to factory defaults, using the Maintenance menu: Menu > Set-up > Maintenance > System reset.

Incorrect channel type in use.

Ensure you are using only Simplex channels for testing, if communicating with another vessel. For example, channels 6, 8, 9, 10, 13, 67, 72, or 73.

Incorrect volume or squelch level.

1. Firstly, verify that noise is audible from the speakers, by setting the Squelch level to zero. To do this, press the Vol/Sq button a few times until Squelch is displayed. Then adjust the level to zero.

2. If there is no noise from the speaker, try adjusting the volume. To do this, press the Vol/Sq button a few times until Volume is displayed. Then adjust the level as required.

   Note Volume control on each handset in the system and the radio units themselves is independent.

3. If audio / noise can be heard, press the Vol/Sq button a few times until Squelch is displayed. Then adjust the squelch level until the noise stops.

4. If no audio / noise is heard from the speaker after completing the above steps, contact Product Support for further guidance.